Meet at the nose of the Lockheed SR-71 Blackbird in the Boeing Aviation Hangar.

About the Ask an Expert Series: On the second and fourth Thursdays of the month at 12:30 pm at the Steven F. Udvar-Hazy Center, a Museum staff member talks to the public about the history, collection, or personalities related to a specific artifact or exhibition in the Museum. For topics of upcoming Ask and Expert talks at the Udvar-Hazy Center, click here.

 Launched by NASA in 1962, Relay 1 was one of several satellites placed in orbit in the decade after Sputnik to test the possibilities of communications from space. How to attend